128810284 has 24 divisors (see below), whose sum is σ = 234460688. Its totient is φ = 61871040.

The previous prime is 128810251. The next prime is 128810287. The reversal of 128810284 is 482018821.

It is not an unprimeable number, because it can be changed into a prime (128810287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4354 + ... + 16630.

Almost surely, 2^128810284 is an apocalyptic number.

It is an amenable number.

128810284 is a deficient number, since it is larger than the sum of its proper divisors (105650404).

128810284 is a wasteful number, since it uses less digits than its factorization.

128810284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12385 (or 12383 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 128810284 is about 11349.4618374617. The cubic root of 128810284 is about 505.0296149675.

The spelling of 128810284 in words is "one hundred twenty-eight million, eight hundred ten thousand, two hundred eighty-four".